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S-136: International Components for Unicode Library (libicu) Vulnerabilities

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Special Forums Cybersecurity Security Advisories (RSS) S-136: International Components for Unicode Library (libicu) Vulnerabilities
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Old 01-29-2008
S-136: International Components for Unicode Library (libicu) Vulnerabilities
The International Components for Unicode library (libicu) is prone to multiple memory-corruption vulnerabilities. The risk is MEDIUM. Successfully exploiting these issues allows remote attackers to corrupt and overflow memory and possibly execute remote code. Failed exploit attempts will likely crash applications.


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LEARN ABOUT MOJAVE

tcl_unicharisprint

Tcl_UniCharIsAlpha(3)					      Tcl Library Procedures					     Tcl_UniCharIsAlpha(3)

__________________________________________________________________________________________________________________________________________________

NAME

       Tcl_UniCharIsAlnum,     Tcl_UniCharIsAlpha,     Tcl_UniCharIsControl,	 Tcl_UniCharIsDigit,	Tcl_UniCharIsGraph,    Tcl_UniCharIsLower,
       Tcl_UniCharIsPrint, Tcl_UniCharIsPunct, Tcl_UniCharIsSpace, Tcl_UniCharIsUpper, Tcl_UniCharIsWordChar  -  routines  for	classification	of
       Tcl_UniChar characters

SYNOPSIS

       #include <tcl.h>

       int
       Tcl_UniCharIsAlnum(ch)

       int
       Tcl_UniCharIsAlpha(ch)

       int
       Tcl_UniCharIsControl(ch)

       int
       Tcl_UniCharIsDigit(ch)

       int
       Tcl_UniCharIsGraph(ch)

       int
       Tcl_UniCharIsLower(ch)

       int
       Tcl_UniCharIsPrint(ch)

       int
       Tcl_UniCharIsPunct(ch)

       int
       Tcl_UniCharIsSpace(ch)

       int
       Tcl_UniCharIsUpper(ch)

       int
       Tcl_UniCharIsWordChar(ch)

ARGUMENTS

       int ch (in)	    The Tcl_UniChar to be examined.
_________________________________________________________________

DESCRIPTION

       All of the routines described examine Tcl_UniChars and return a boolean value. A non-zero return value means that the character does belong
       to the character class associated with the called routine. The rest of this document just describes the character classes  associated  with
       the various routines.

       Note: A Tcl_UniChar is a Unicode character represented as an unsigned, fixed-size quantity.

CHARACTER CLASSES

       Tcl_UniCharIsAlnum tests if the character is an alphanumeric Unicode character.

       Tcl_UniCharIsAlpha tests if the character is an alphabetic Unicode character.

       Tcl_UniCharIsControl tests if the character is a Unicode control character.

       Tcl_UniCharIsDigit tests if the character is a numeric Unicode character.

       Tcl_UniCharIsGraph tests if the character is any Unicode print character except space.

       Tcl_UniCharIsLower tests if the character is a lowercase Unicode character.

       Tcl_UniCharIsPrint tests if the character is a Unicode print character.

       Tcl_UniCharIsPunct tests if the character is a Unicode punctuation character.

       Tcl_UniCharIsSpace tests if the character is a whitespace Unicode character.

       Tcl_UniCharIsUpper tests if the character is an uppercase Unicode character.

       Tcl_UniCharIsWordChar tests if the character is alphanumeric or a connector punctuation mark.

KEYWORDS

       unicode, classification

Tcl									8.1						     Tcl_UniCharIsAlpha(3)